Method



SAlVIL. H. YOGUM, OF SHELBYVILLE, INDIANA.

METHOD OF BORING HUBS FOR BOXES.

Specification of Letters Patent No. 15,678, dated September 2, 1856.

To all 'LU/tom i may concern.'

Be it known that I, SAMUEL H. YocUM, of Shelbyville, in the county ofShelby and State of Indiana, have invented a new and useful Machine forTurning Out Hubs for the recept-ion of Boxes, as herein described; and Ido hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings making part of this specification inwhich- Figure l is a vertical section. Fig. 2 is a horizontal section.

The frame of the machine is composed of two benches a, a, parallel witheach other connected together by cross bars B, B, and set screws z', z',forming an adjustable frame in which wheel u, is hung, on fouradjustable antifriction wheels c, o, c, c, regulated by temper screwsla, it, cross bars B, B, and set screws i, z', so as to set the squareends of the hub D, up square on the plates s, s, which are on the insideof the benches a, a, and at a right angle with the bits e, e, andconfined in that true position by four other adjustable antifrictionwheels c, C, c, c, operated by temper screws o, 0, placed over it.

z', i, are movable rests opposite each end of the hub D, dovetailed tobenches a, a, so as to slide back and forth on said benches, on whichare fastened firmly bits e, e, that enter each end of the hub D, as faras required, operated by lever m, and adjustable feed rods n, n.

The different sized spaces for the different sized boxes required in thesame hub are made by shortening the draft on the adjustable feed rod n,that feeds the bit e, at the end of the hub D, in which the smallest boxis required, set the gages fw, w, w, w, on scale w by slide rests j, j,to any size boxes required, put the wheel u, in motion and apply thehands to the lever m, draw the rests j, j, up to the set gages w, fw,and the desired spaces for the reception of the boxes are complete, thusproducing a cavity for the boxes, exactly in the center of each end ofthe hub D, at the same time.

That I claim as my invention and desire to secure by Letters Patent, is-

(lperating the bits c, e, by the adjustable feed rods n, n, and lever m,with the mechanism described or its equivalent, in combination with theeight antifriction wheels c, c, c, c, c, c, c, c, temper screws 0, o,and 7c, c, that conne the hub D, and expose a true circle to the bits e,e, at any desired distance from the center of the hub.

.SAMUEL H. YOCUM.

Witnesses:

N. D. RoiNs, B. F. YoouM.

